Secondary battery.



No. 658,734. Patented sept. 25, moo. c. J. COLEMAN.

SECONDARY BATTERY.

(Ammann med oct. 2, 1899.)

(No Model.)

ms PETERS co. puerwuuo., wAsmNcwn. 'n. c,

NTTED STATES PATENT EEICE.

CLYDE J. COLEMAN, OF CHICAGO, ILLINOIS, `ASSIGNOR, BY MESNE ASSIGN- MENTS, TO TI-IE GENERAL ELECTRIC STORAGE BATTERY COMPANY, OF

NEW JERSEY.

SECON DARY BATTERY.

SPECIFICATION forming'part of Letters Patent No. 658,734, dated September 25, 1900.

Application filed October 2, 1899. V Serial No. 732,353. (No model.)

To all whom, it Wawy concern.-

Be it known that I, CLYDE J. COLEMAN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State -of Illinois, have invented certain new and useful Improvements in Secondary Batteries;

and I do hereby declare the following to be a full, clear, and exact description of the saine, reference being had to the accompanyro ing drawings, forming a part of this specification.

The present invention relates to that particular type of secondary batteries in which the active material is contained Within a perforated containingcasing or holder of conductive material, an example of which constitutes the subject-matter of myprior application for Letters Patent,filed August 3, 1899, Serial No. 726,014.

One object of the present improvement is to provide a durable, economical, and efficient construction of the perforated casing or holder for the active material, as will hereinafter more fully appear, and be more particularly pointed out in the claims.

A further object of the present improvement is to provide a simple and efficient means of connection betweenthe perforated condncting-casings and the connecting strip 3o or bar, as will also hereinafter more fully appear.

I attain such objects by the construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure 1 is a fragmentary elevation of a secondary-battery electrode embodying the present invention, with parts in section at line a; Fig. 2; and Fig. 2, a sectional plan view at line as Fig. l.

Similar numerals of reference indicate like parts in both views.

Referring to the drawings," 1 represents the conducting strip or bar by which the series of separate cellsv 2, containing the active material, are electrically connected together in a manner hereinafter described to constitute a secondary-battery electrode. y

The first part of the present improvement involves a construction of the casings or hold- 5o ers for the active material, of two counterpart sections, each of which comprises a main semicylindrical or other suitably-shaped portion 3, intermediate connecting web portions t, and end flanges 5, the webs and flanges of the two sections being adapted to abut against each other and afford means for securing the two sections together by rivets 6 or other like fastenin gs to constitute the completed casing or holder of the battery-electrode. The scope of this part of the presentinvention involves either the formation of a single containingcell in two sections longitudinally arranged and provided with longitudinal connectingflanges at opposite sides, but more particularly involves the means of formation of the series of separate cells in the manner shown in the drawings and heretofore described.

Another part of the present invention involves the means of connection between the containing-cell or series of separate cells heretofore described and the connecting-bar of the electrodein this: 'isacup-shaped piece fitting Vthe upper ends of the cells of the electrode and having extended surface contact therewith,as shown, the conductive union between the two being rendered even more perfect when so required by the fusion together of the upper edges of the cup-shaped piece 5 and of the casings or holders, as fully set forth in my former application, Serial No. 726,014.

f 8 is a central stem integrally connected at its lower end to the cup-shaped piece 5 and at its upper end to the connecting bar or strip 1 of the electrode to complete the mechanical and electrical connection between the cells and the said connecting bar or strip.

The series of tubular perforated casings or holdersabovedescribedwillusuallybeformed of perforated sheet-lead or other like conductive material. In somecases,however,theymay be of a non-conductive material and a metal rod or other like separate provision be used to afford conductive connection between the active material contained within the cells of the electrode and the connecting bar or strip 1.

The loose active filling material will be usually oxid of lead. Any other suitable oxid may be used, however, without departing from the spirit of this part of the present invention, and the same will be retained in place by an end closure or flanged head 9, arranged in any usual manner at the lower ends of the different cells, as illustrated in Fig. 1.

Having thus fullydescribed mysaid invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A secondary-battery electrode, com prising a perforated casing having a longitudinal cell containing the active material, and formed by a series of longitudinal sections united together by longitudinal fianges at the edges of such sections, and a pair of closurepieces fitting the respective ends of the cell to afford an easy and convenient manner of introducing the filling of active material into the cell or chamber, substantially as set forth.

2. A secondary-battery electrode, comprising a perforated casing having a series of longitudinal cells containingthe active material, and formed by a series of longitudinal sections united together by longitudinal flanges and central longitudinal Webs, and pairs of closure-pieces fitting the respective ends of the cells to afford an easy and convenient manner of introducing the filling of active material into said cells, substantially as set forth.

3. A secondary-battery electrode, comprising a perforated casing having a longitudinal cell and formed by a series of longitudinal sections united together by longitudinal flanges at the edges of such sections, a pair of closurepieces fitting the respective ends of the cell to afford an easy and convenient manner of filling such cells, a connecting-strip having electrical connection with the casing, and a filling of active material, substantially as set forth.

4. A secondary-battery electrode, comprising a perforated casing having a series of longitudinal cells, and formed by a series of longitudinal sections united together by longitu dinal flan ges and central longitudinal Webs, pairs of closure-pieces fitting the respective ends of the cells to afford an easy and convenient manner of filling such cells, a connecting strip having electrical connection with the casing, and fillings of active material, substantially as set forth.

5. In a secondary battery, the combination of a perforated conducting-casing for containing the active material, a cup-shaped conducting-piece fitting the inside of the upper end of the casing, a connecting bar or strip, and a stem connecting the cup-shaped piece with the connecting-bar, substantially as set forth.

6. In a secondary battery, the combination of a perforated conducting-casing comprising a series of cells for containing the active inaterial, a series of cup-shaped conductingpieces fitting the insides of the upper ends of the cells, a connecting bar or strip, and a series of stems connecting the cup-shaped pieces with the connecting-bar, substantially as set forth. I

7. In a secondary battery, the combination of a perforated conducting-casing for containing the active material, formed of a series of longitudinal sections lunited together by longitudinal flanges, and a connecting-strip having electrical connection with the casi ng, such connection comprisinga cup-shaped piece fitting the inside of the upper end of the casing and a connecting-stem, substantially as set forth.

S. In a secondary battery, the combination of a perforated conducting-casing comprising a series of cells for containing the active material and formed of a series of longitudinal sections united together by central longitudinal webs and outer or end fianges, and a connecting-strip having electrical connection with the series of cells of the casin g, such connection comprising a series of cup-shaped pieces fitting the'insides of the upper ends of the cells, and a series of connecting-stems, substantially as set forth.-

In testimony whereof witness my hand this 2d day of September, 1899.

CLYDE J. COLEMAN.

In presence of- ROBERT BURNS, HENRY A. No'rT. 

